Hi i have just had it confirmed that in certain parts of the uk vm are keeping the signal level low at between 50% and 49% this is because its screws up ya picture on ya starview but the orignal sub box its ok for this ,i have been having trouble with picture freeze etc and my signal level is low as above the qaulity is still up to 99% ,if yours is the same you now know why ,to check yours just press sl on ya remote ,the buggers arnt they 